Chalaza

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chalaza

[kə′lāz·ə]
(botany)
The region at the base of the nucellus of an ovule; gives rise to the integuments.
(cell and molecular biology)
One of the paired, spiral, albuminous bands in a bird's egg that attach the yolk to the shell lining membrane at the ends of the egg.

Chalaza

 

the basal part of the ovule where the seed stalk attaches the ovule to the placenta.

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References in periodicals archive ?
Robertson (1985) suggested that chalazae may be a useful synapomorphy shared by pyramidellids, architectonicids, and opisthobranchs.
Morphology and development of Odostomia columbiana dall and bartsch (pyramidellidae): implications for the evolution of gastropod development
The white string-like thing around the yolk ending in a small clump is a chalazae.
A chicken primer. (The henhouse)
People who are new to farm-fresh eggs are often concerned about chalazae, the "cords" in egg whites.
The homestead chicken

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